How 3D Is Used to Make 2D Animation?

Anime fans often love scenes that feel dynamic, emotional, and beautifully drawn. A dramatic side profile, an extreme hand close-up, or an action pose that looks impossible in real life can leave a lasting impression. What many viewers do not realize is that some of these 2D animation moments are actually created with 3D tools.

That does not make the result any less impressive. It shows how modern anime production uses 3D models, cel-shaded rendering, and camera tricks to recreate the appeal of 2D animation. In this article, we will look at how studios use 3D to create 2D animation and the visual techniques that make it work.

Why Studios Use 3D to Create 2D-Looking Animation

The use of 3D in anime is no longer unusual. Many productions now rely on 3D for characters, props, vehicles, effects, and even full scenes. The reason is simple: 3D production can improve consistency, save time on repeated shots, and make complex camera movement easier to manage.

However, audiences still respond strongly to the visual language of traditional 2D animation. That is why many anime productions aim for a hybrid result: the efficiency of 3D animation combined with the charm and impact of hand-drawn visuals.

This is where 2D-looking anime animation becomes important. Instead of making 3D look realistic, artists often make it look less realistic on purpose. They simplify surfaces, flatten shading, exaggerate perspective, and distort models in ways that support stronger composition and more emotional storytelling.

>> Learn More: What’s the Difference Between 2D and 3D Animation?

What Does “Using 3D to Make 2D Animation” Really Mean?

Using 3D to make 2D animation does not mean that artists simply convert a 3D model into a flat image. It usually means building and animating scenes in 3D while rendering and adjusting them so they feel closer to hand-drawn anime.

This process often includes:

• 3D character modeling
• stylized rigging and posing
• cel-shaded 3D animation
• camera-based distortion
• non-realistic proportions
• compositing that mimics 2D linework and color design

The final goal is not physical accuracy. The goal is visual impact.

Cel-Shaded 3D Animation and the Anime Look

One of the most important techniques behind anime 3D production is cel shading. In standard 3D rendering, lighting usually produces smooth gradients, realistic reflections, and natural shadows. That works well for photoreal images, but it does not automatically look like anime.

Cel-shaded 3D animation changes that. Instead of realistic shading, it uses harder light-and-shadow transitions, flatter tones, and stronger outlines. This helps 3D characters look more like they were drawn in 2D.

For anime-inspired projects, cel shading is often combined with custom contour lines, selective highlights, simplified materials, and color design choices that resemble traditional animation cels. The result is a scene that keeps the depth and camera flexibility of 3D while visually reading like 2D.

Examples of 3D Techniques That Create a 2D Effect

The comic book style girl puts her hand in front of her face and makes a cute gesture as if she is a bit shy for the camera…

People who love anime have always been struck by similar compositions. This is because such an intimate perspective makes one feel infinitely closer to the characters on screen.

But once you know the truth, you feel very far away from them.

A very normal character in the shot, looking like a giant hand monster from other angles

It's an inside story that many in the 3D animation industry avoid talking about. What you see, may only be as good as it seems:

And these are just a few of the things that go into 3D animation.

As viewers, we are often struck by the expressive animation shots on screen, but it is hard to think of the unexpected "deceptive" tricks behind them...

For example, these cute and cuddly looking characters may well have a crooked mouth model.

Recently, a Japanese anime enthusiast, さんご, has announced his self-produced anime, Bite the Bullet.

As soon as the anime was released, it quickly became a hot topic in the Japanese anime community. The first thing people admired was the high quality it showed.

But that wasn't the end of it. For with it, author さんご shared a portion of the 3D production process of Bite the Bullet.

What was revealed in these process images was something that most viewers were not expecting - for example, a few frames of animation where the "character speaks sideways" are actually hiding a crooked mouth model.

The aesthetically pleasing shot of the young girl looking down is reliant on the rendition of the monstrous man.

The mystery of 3D animation was lifted with the appearance of these production images. The "brutal" truths were revealed to a large number of users, who sighed "so that's how it is".

But in the case of 3D animation, this is only the most elementary of “scam” techniques.

As we have seen, most anime have a sight that does not strike us as strange unless we think about it.

The character is showing a side face, but a full mouth is visible.

It is a way of presenting the painting in a way that reduces its cost. With its extensive use, it has now become a phenomenon that is not uncommon to viewers.

Some of the 3D animations (especially cel-shading) have to deliberately tilt the mouth to a particular angle during the adjustment of the model in order to achieve the same effect.

This is a rather counter-intuitive way of drawing, but it is one of the common techniques in 3D animation: 'destroying' the integrity of the model itself for the sake of expressiveness.

In short - the model may not be as ‘harmonized' as you think it is, where the viewer can't see it.

As more and more producers of 3D animation reveal the process of creating their own work, the secrets behind are beginning to be revealed.

For example, in the final result there is a rather powerful image of roaring.

But it may look a little funny on the front.

鈴木大介, CG director of the anime Bubuki/Buranki, has explained this in detail about a scene in the production: "This image uses the plug-in to add brush strokes to the contour lines, while the posterior notch teeth, which are not included in the model, have been re-kneaded and put in. This is a typical example - the 3D model has been refined in order to look like 2D."

The viewer is only able to see the final picture. The artist often has to go out of his way to break the consistency of the model in order to get the best out of a particular angle.

For most 3D productions, the reality can be very different from what you might expect in places that are not visible to the viewer.

One player has tapped into the game Dragon Ball FighterZ and has been known to bring out some of the content that is not visible to the casual viewer.

Dragon Ball FighterZ is an action-packed fighting game published by Bandai Namco Holdings. As a manga adaptation, it places great emphasis on the fighting performance in the game, and has received great acclaim for this.

While the game uses a traditional 2D horizontal fighting game perspective, the characters are modeled in 3D and there are brief perspective shifts and performances depending on the skills.

A YouTuber named sigmaG19 has done a few tricks to fix the perspective of the game and then shared some more "realistic" images of the game.

It is in contrast that one understands how some of the extremely tense performances are achieved. The most classic example of this is the animation of Son Gohan's big move. During live action, it looks like this:

The animation deliberately gives a close-up of the character's hands, making the overall movement look extremely tense. And if you watch this performance in a fixed perspective, you will see that the image above is actually achieved by making the hands increase violently:

There are a number of similar animated sequences. Once the camera and perspective are missing, the actual picture effect is slightly strange.

Some in the animation industry refer to this technique as 'necessary fraud'.

Fraud" means "destroying" the consistency of the model itself by distorting, enlarging and reducing, in order to enhance the tension of the image.

The creator of the CG animation for the female-oriented game IDOLiSH7 had demonstrated a similar technique.

In one of the game's CG animations, a character is shown in profile with her buttocks slightly exposed.

In order to achieve the "fullness" shown above, the production team actually added hip pads to an otherwise flat model.

Since anime often has similar exaggerated effects, it is not particularly surprising to viewers that some actions or effects do not actually 'make sense'.

By "not reasonable", it means that "these images cannot actually be "achieved" in reality.

One of the most typical images is Ultraman's action: Ultraman flying forward with his fist raised.

Ultraman's large fists give the whole picture a very dynamic impact. But to achieve this pose in reality, one would have to accept having Ultraman out of proportion.

In the 2D view, the hero Ultraman goes all the way. But in the 3D world, it's really more like a rubber man who can stretch his limbs.

This technique of placing unreasonable emphasis on parts of the body in order to make the picture more expressive now has a proper name: the perspective of lies: (嘘パース).

For anime fans, the chances are that you have been "tricked" numerous times by the perspective of lies without actually realising it.

Fans of anime and manga are likely to be impressed by an image of a character holding a fist or weapon out in front of the screen.

You may have a vague feeling that the composition may not make sense, but you don't think about how much it doesn't make sense.

In some 2D animation, where the emphasis is on impact, this kind of image is often criticized as being "hard to figure out how to make such a pose".

And the production of 3D animation gives the answer: making excuses.

There is a scene in the anime High Score Girl where the female protagonist punches the male protagonist hard in the face.

The viewer, who only sees such a brief scene in the production, automatically makes up the off-screen parts and naturally rationalizes them.

But if you look into it, you can see that this kind of image cannot be realized in reality. Instead, 3D animation uses posing in order to make it come true.

If only a wide angle lens is used to achieve a similar effect, the character's face will be distorted as well

Similar shots that we often see in 3D work are basically achieved by distorting and modifying the modeled limbs.

This harmless 'trickery' gives the normal images a more exaggerated sense of 2D animation.

In many unexpected places, your eyes may have been deceived by the camera!

And this perspective of lies does greatly enhance the performance of the image. One modeler has shared a before-and-after comparison of the resizing of a character's feet, and the effect is highly visible:

It is also because of this excellent effect that the perspective of lies is now ubiquitous.

It is also worth noting that this technique of 'irrational' exaggeration was actually being used decades ago.

Between the 1970s and the mid-1980s, an artist named Kanada Yoshinori had a huge impact on the Japanese animation industry. He worked on a number of classic animations such as Getter Robo G, Ikkyū-san and GeGeGe no Kitarō, and was known for his unique drawing techniques.

In Kanada Yoshinori's drawing process, he often used a special technique: exaggerating the distance and proximity of the characters/objects - zooming in on the near objects and zooming out on the distant ones.

The image thus manipulated obviously has many perspective errors. But it is a convincingly expressive image:

The impact of this style of painting on the whole industry has been immeasurable. It is also known as the "Kanada Perspective" and is one of the cornerstones of the method perspective of lie.

The “Perspective of Lies” in Anime and 3D Animation

A useful concept here is the so-called “perspective of lies,” a stylized approach in which artists exaggerate near and far forms to create stronger visual drama. This technique has long existed in Japanese animation, where impact and readability often matter more than strict perspective rules.

When adapted into anime 3D production, the perspective of lies helps artists create shots that feel closer to classic 2D animation. A character’s hand may become oversized in a punch shot. Feet may scale up for motion emphasis. A head or torso may shift shape depending on the composition.

From a neutral camera view, these edits may look unnatural. But from the final camera angle, they create exactly the kind of energy viewers expect.

This is one of the clearest answers to how anime uses 3D models: not by preserving realism, but by shaping reality to serve the image.

Why Rendering Matters for Anime-Style 3D Production

Stylized anime CG may look simple on screen, but the production process behind it can be demanding. Cel-shaded 3D animation still requires modeling, rigging, animation, lighting, line control, compositing, and rendering. Once projects become more complex, rendering can quickly become a bottleneck, especially for teams working with multiple shots or tight schedules.

That is where a render farm can help. For artists and studios creating anime-style 3D content, offloading rendering work can save time and free up local machines for continued production.

Fox Renderfarm provides CPU and GPU cloud rendering support for 3D projects, making it easier to handle animation sequences, stylized rendering workflows, and large-scale visual production. Whether the project focuses on cel shading, character animation, or anime-inspired look development, cloud rendering can improve efficiency during final output.

Final Thoughts

If you have ever wondered how anime uses 3D models without losing the charm of 2D, the answer lies in stylization. Artists do not simply build clean 3D models and render them normally. They reshape, distort, simplify, exaggerate, and control every element so the final image feels expressive rather than mechanical.

That is the real secret behind using 3D to make 2D animation. It is not about hiding 3D. It is about using 3D intelligently to serve the language of 2D animation. For anime fans, these techniques may feel surprising at first. For artists, they are a reminder that the strongest images are not always the most realistic ones. In animation, what matters most is not whether the model is technically perfect, but whether the shot feels alive.